Pleistocene to Holocene

Slides:

Advertisements

Similar presentations

Section 18.1,18.2 By: Christian Flores and Jordan

Advertisements

Fossils and Earth’s Geologic History PRESENTED BY: MARK A. VAN HECKE ANCHOR BAY HIGH SCHOOL NEW BALTIMORE, MI.

Geologic Time Scale Ch 18.

Time- a limited period or interval, as between two successive events. Seconds Minutes Hours Days Years.

The geologic time scale shows Earth’s past.

The History of Life on Earth As We Know It. The History of Earth Earth is ~ 4.5 billion years old Earth’s history is divided into four eons –Hadean Eon:

Geologic Time Scale Earth Science Spring 2014.

Geologic Time and the Rock Record 8 th Grade Earth and Space Science Class Notes.

Key area 7: Mass extinction, regaining biodiversity and measuring biodiversity.

Recording natural history

Key Area 7 (a) : Mass extinction Unit 3: Sustainability and Interdependence.

The Sixth Extinction.  A mass Extinction is:  - When at least half of all species (including animals and plants) die within a relatively short time.

GEOLOGIC TIME SCALE. PRECAMBRIAN ERA  5,000 – 544 MYA.  The beginnings of life, approximately 1,200 MYA.  Single and multiple celled organisms- lived.

Geologic Time Basics. Earth’s history is huge! In order to understand earth’s history, humans must think in much larger units of time than those we use.

Geologic Time Scale (Earth is 4.6 billion years old)

End Show Slide 1 of 30 Copyright Pearson Prentice Hall Biology.

Unit 5: Formation of the Earth Objectives: E5.3B - Explain the process of radioactive decay and explain how radioactive elements are used to date the rocks.

Welcome to Class Write down the four eras (put them in the correct order)

Evolution of Multicellular Life Precambrian - all periods before the Paleozoic era – 90% of Earth’s History – fossil evidence is contained in stromatolites.

RESEARCHING THE GEOLOGIC TIME SCALE

The Geologic Time Scale

Paleogeography of North America Images by: Dr. Ron Blakey Professor of Geology Northern Arizona University

Evolutionary Path from Fish to Humans N Cambrian Ordovician PreЄ T J K PgPg O SD P Є C N Vertebrate Precursors 1 st Vertebrates ~

Chapter 9: View of Earth’s Past Megan Darvish June 1.

Thursday, November 17 th, 2011 Bell Ringer: On a sticky note, answer the following question: You are a geologist working at the rock outcrop below! You.

A View of the Earths Past

How do we measure the Earths Age?

TIMELINE Eras of Phanerozoic Sample presentation created by iSpring Solutions Inc.

Geologic Time Scale Chapter 17. Formation of Earth 4.6 billion years old Took 100 million years to form.

Evolution. Adaptive Radiation The speciation and adaptation of an array of species Species show different morphological and physiological traits.

Examining layers of sedimentary rock, scientists have put together a chronology of Earth’s history. Divided into 4 Eras: 1.Precambrian (3.5 bya mya)

Welcome To Class

This period is about 5 times as long as the Paleozoic and Mesozoic combined, a very long time. Less is known about it than the younger time periods. The.

Chapter 17 Section 1 paleontologists- scientists who study fossils -they infer what past life forms were like -arrange fossils according to time in which.

MASS EXTINCTIONS. 3/21 B-BAT: EXPLAIN THE SIXTH MASS EXTINCTION IN THEIR OWN WORDS Do Now! What mass extinctions do you know of? How did those animals.

Geological Time Scale.

2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt WHAT ERA/EON? WHAT PERIOD? WHO CAME.

87% 4.6 Precambrian  Earth was completely molten  No water  No atmosphere  No land  No life.

By the end of class, you need to be able to

EARTH’S HISTORY PREPARED BY: SITCHON, GLORIA G. TANHUECO, MICHAELA C.

Earth’s Geologic History based on fossils

Jeopardy Cenozoic Mesozoic Paleozoic Precambrian Grab Bag Q $100

Geologic Time Unit 8.5.

Mass Extinctions in Geologic History

How can fossils provide clues to the past?

Processes of Macroevolution: Mammalian/Primate Evolutionary History

Warm up Put EON, PERIOD, AGE, EPOCH, ERA in order from largest to smallest.

DO NOW Turn in Review #1. Pick up notes sheet and Review #2.

DO NOW Pick up review. Turn in vocabulary.

Science 9 Review for the Earth History

Cambrian period, ~525mya. Gondwana (southern continent) beginning to form.

Personal Timeline Create a visual timeline of your life.

Mass Extinctions.

AP Biology – Lecture #4 Big Idea #1 – Life continues to evolve within a changing environment Adapted from Rebecca Rehder Wingerden ©

Geologic Time Ch. 30.

Anything in YELLOW DON’T WRITE DOWN!

Mass Extinctions.

The Age of Earth Ch 19.2 Biology.

Mass Extinction Research Project This is an individual assignment that will be an assessment grade. It is due Friday by the end of class. Top Five Extinctions:

Learning Intention: 8.ESS2.1

Learning Intention: 8.ESS2.1

Phanerozoic Proterozoic Archean Cambrian Ordovician Silurian Devonian

Mass Extinction Research Project This is an individual assignment that will be an assessment grade. It is due Friday by the end of class. Top Five Extinctions:

Fossils Lecture 1.

Geologic time is a difficult concept to grasp. 12 hours

Earth’s History Review

Geologic Timeline based on Fossils

Presentation transcript:

Pleistocene to Holocene

Pleistocene to Holocene What happened? When? Why? How many?

Holocene (0.01 MYA to present) WHEN? Pleistocene (1.6 MYA) Holocene (0.01 MYA to present) Source: Lane, N. G. (1992). Life of the past (Third edition). Maxwell Macmillan International: New York.

What happened? Sixth Great Extinction: 450-440 myr – Ordovician- Silurian extinction 375-360 myr – Devonian extinction 250 myr – Permian- Triassic extinction 200 myr – Triassic – Jurassic extinction 65 myr – Cretaceous extinction 5,000 yr – Holocene extinction

Why extinction happen? The causes of extinctions have traditionally been divided into two camps: Human impacts Climatic impacts (Johnson & Wroe, 2003;Louys et al., 2007)

Causes of extinction of 4 Megafauna in Borneo (Cranbrook,2010) Climate change hunting

How many extinct? Borneo: Cuon Panthera Tapirus Rhinoceros Giant pangolin (Manis gigantea)- extinct from Niah caves (Harrison,1996)

Referrences Harrison, T. (1996). The palaeoecological context at Niah Cave, Sarawak: evidence from the primate fauna. Indo-Pasific Prehistory Association Bulletin 14:90-100. Johnson, C. N. & Wroe, S. (2003). Causes of extinction of vertebrates during the Holocene of mainland Australia: arrival of the dingo, or human impact? The Holocene 13(6): 1009-1016. Lane, N. G. (1992). Life of the past (Third edition). Maxwell Macmillan International: New York. Louys, J., Curnoe, D. & Tong, H. (2007). Characteristics of Pleistocene megafauna extinctions in Southeast Asia. Palaeogeography, Palaeoclimatology, Palaeoecology 243: 152-173.